Really weird case
I use 2 pfsense boxes.
1 at home other at work.
I upgraded box at home to 2.4 (latest todays snap).
At work it is: 2.3.2-RELEASE-p1 (amd64)
Now to the problem.
I can ping from 2.3.2 box to home box
I can traceroute from 2.3.2 box to home box
t connect to any port from 2.3.2 box to 2.4 (mail on port 25 does not work, also 80 or 443 dont work)
When I had 2.3.3 at home it worked flawlessly…
Also IPv6 works even now without any problems.
IPsec between boxes works as well.
Ran wireshark and saw a tons of tcp retransmissions...
Funny thing is, that if I access website behind 2.4 box from anywhere else it works OK. Also I can receive mail from everywhere BUT 2.3.2 box (mailserver behind it).
Any idea what happened?
I forgot to mention that I have 2 WANS..
When I shut down PPPoE (on this link is also IPSEC) it starts to work…
Huh found the problem…
When traffic comes to my HTTP server is OK (DHCP WAN), but HTTP server sends it back via PPPoE WAN because of ipsec connection.
But why this worked in 2.3.3 version?
Disabled Ipsec, rebooted only one box and all works as expected...